Issue #218,Add datepicker gem
Issue #218,Add requirement for datepicker
Issue #218,Add .editinplace in competition.js
Issue #218 ,Add require for datepicker
Issue #218, Add edit in place in show.html.erb
Issue #218, Add BIP in update
Issue #218,Add delete competitions
Issue #218, Add delete modal
Issue #218, Add documentation
Issue #218, Add competitions in Nav bar
Issue #218, fix spacing
Issue #218,Remove new link from index
Issue #218, Add competition button in navbar for guest
Merge branch 'C3_marwa-mehanna_#218_competition_crud' into C2_abuali_#240_competitions